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We have ✅ 25 available of the DF-SEN0138-L in our Sydney warehouse.

Express post delivery (2-5 business days)

A compact crash sensor (left-side variant) based on a miniature snap-action micro switch with roller lever. Designed for Arduino and compatible microcontrollers, this sensor module includes an onboard pull-up resistor and status indicator LED for easy testing and integration. The roller lever design makes it suitable for a variety of contact-detection applications.

Key Features

  • Micro Switch with Roller Lever – Snap-action switch actuated by minimal physical force
  • Onboard LED Indicator – Visual feedback of switch state for easy debugging
  • Built-In Pull-Up Resistor – Simplified wiring with digital output ready to read
  • Gravity Compatible – Connects directly to DFRobot IO Expansion Shield for Arduino
  • Dual Mounting Holes – Two M3 holes for secure installation

Specifications

  • Operating Voltage – 5 V
  • Output – Digital
  • Pinout – Digital output, VCC, GND
  • Dimensions – 30 × 20 × 8 mm
  • Mounting – 2× M3 holes
  • Variant – Left

Ideal For

  • 3D printer endstop and position feedback
  • Robotics collision detection
  • Limit switches for CNC and automation
  • Door and panel interlock sensing

Package Contents

  • 1× Crash Sensor (Left)

Resources

The Crash sensor (Left) appears in the following collections:

SKU DF-SEN0138-L
by DFRobot